How to Check Your Wi-Fi Router's Frequency: A Complete Guide for 2.4 GHz and 5 GHz

Have you noticed that your internet speed has suddenly dropped on some devices, or that 4K video is only lagging in a certain room? The reason may be incorrectly selected Wi-Fi frequency — 2.4 GHz or 5 GHz. These two bands differ fundamentally in terms of coverage range, resistance to interference, and maximum speed. But how do you know which frequency your router is currently using? And most importantly, how do you check if your device supports both bands?

In this article we will discuss 5 proven methodsHow to determine your current Wi-Fi frequency: from standard router settings to hidden commands in Windows and mobile apps. You'll also learn why Dual-Band routers do not always automatically select the optimal frequency, and how to manually switch between 2.4 GHz and 5 GHz for maximum performance. No special knowledge is required—all methods are suitable for users of all skill levels.

What's the difference between 2.4 GHz and 5 GHz frequencies: what you need to know before testing

Before checking your router settings, it is important to understand What problem does each range solve?The 2.4 GHz frequency is a “veteran” of wireless networks, which appeared back in 1999 along with the standard 802.11bIts main advantages:

• 📡 Long range — the signal passes through walls and ceilings better than 5 GHz.
• 🔄 Better compatibility - works even with older devices (eg. smart sockets or printers).
• 🏠 Less dependent on obstacles - suitable for large apartments or offices with thick walls.

However, 2.4 GHz has a critical drawback: channel congestionIn apartment buildings, dozens of routers can operate on the same frequency, which leads to interference (mutual interference) and speed drops. This is where 5 GHz comes to the rescue:

• ⚡ Higher speed — up to 1 Gbps versus the maximum 600 Mbps for 2.4 GHz (under ideal conditions).
• 🎯 Less interference — in the 5 GHz range, up to 23 non-overlapping channels are available (compared to 3 in 2.4 GHz).
• 🖥️ Ideal for modern devices — suitable for 4K streaming, online gaming and video calls.

But 5 GHz also has its downsides: the signal penetrates obstacles less effectively, and older devices (manufactured before 2012–2015) may not support it. For example, some models Samsung smart TVs or Xiaomi fitness bracelets work only on 2.4 GHz.

⚠️ Note: If your router supports Wi-Fi 6 (802.11ax), it can use both ranges simultaneously in the mode Dual-Band or even Tri-Band (Additionally 6 GHz). In this case, devices automatically connect to the optimal frequency, but manual configuration is sometimes required.

Method 1: Checking the frequency via the router's web interface

The most reliable way to find out your current Wi-Fi frequency is to go to router control panelYou don't need any special software, just a browser and internet access. The instructions are universal for most models, but the settings paths may vary slightly depending on the manufacturer.TP-Link, ASUS, Keenetic, MikroTik and others).

Steps to log in to the web interface:

1. Find out Router IP address. Usually it is 192.168.0.1 or 192.168.1.1You can check this via the Windows command line:

   ipconfig | findstr "Default Gateway"

   Or on Mac/Linux:

   netstat -nr | grep default

2. Enter the IP in the address bar of your browser (Chrome, Firefox, Edge).
3. Log in. The default login and password are usually admin/admin or indicated on the router sticker.

Next, look for the Wi-Fi settings. Examples of paths for popular brands:

• 🔧 TP-Link: Wireless (2.4GHz/5GHz) → Wireless Settings
• 🔧 ASUS: Wireless Network → General (there will be two tabs for 2.4 and 5 GHz)
• 🔧 Keenetic: Wi-Fi → Hotspot (frequency is indicated next to the network name)
• 🔧 Zyxel: Wi-Fi Network → Basic Settings

In the settings, pay attention to:

• 📌 Network name (SSID) - if there are two networks with the same name but different suffixes (for example, MyWiFi_2G And MyWiFi_5G), then the router operates in both ranges.
• 📌 Wi-Fi standard - if specified 802.11n/ac/ax, then 5 GHz is supported; if only 802.11b/g - only 2.4 GHz.
• 📌 Channel — in 2.4 GHz these are numbers 1–13, in 5 GHz — 36–165 (depending on the country).

Make sure Wi-Fi is turned on|Find tabs for 2.4 GHz and 5 GHz|View the current channel and standard (802.11n/ac)|Check network names (SSIDs) for _2G/_5G suffixes-->

⚠️ Attention: On some routers (for example, Huawei or Tenda) 2.4 GHz and 5 GHz bands can be combined into one network with technology Smart ConnectIn this case, the router automatically assigns devices to frequencies, and you can't manually select a band. To disable Smart Connect, look for the corresponding option in the Wi-Fi settings.

Method 2: Determining the frequency via a mobile app

If it is inconvenient to access the web interface (for example, from a phone), you can use official applications of the router manufacturerThey typically provide the same information as the control panel, but in a more convenient format. Popular apps:

• 📱 TP-Link Tether (for TP-Link routers)
• 📱 ASUS Router (for ASUS)
• 📱 Keenetic (universal for Keenetic)
• 📱 Mi Wi-Fi (for Xiaomi routers)

Instructions with an example TP-Link Tether:

1. Download the app from App Store or Google Play.
2. Connect to your router's Wi-Fi network.
3. In the main menu, select your router (if you have more than one).
4. Go to the section Wi-Fi settings or Wireless mode.
5. Both networks will be listed here (if the router is dual-band) with marks 2.4G And 5G.

In applications ASUS Router And Keenetic The frequency is displayed directly on the main screen in the "Wi-Fi Status" section. If you only see one network, it means:

• 🔍 Single-band router (2.4 GHz only).
• 🔍 Mode enabled Smart Connect (automatic switching between frequencies).
• 🔍 5 GHz is disabled in the settings.

Method 3: Checking the frequency on Windows via the command line

If you have a computer or laptop on Windows 10/11You can find out your current Wi-Fi frequency without third-party programs, using built-in commands. This method works even if you don't have access to the router (for example, on a guest network).

Open command line (Win + R → enter cmd → Enter) and run the command:

netsh wlan show interfaces

In the results, look for the following lines:

• Radio type — it will be indicated here 802.11n (can be 2.4 or 5 GHz), 802.11ac (5 GHz only) or 802.11ax (Wi-Fi 6, both bands).
• Channel — if the number is from 1 to 13, it is 2.4 GHz; if from 36 to 165, it is 5 GHz.

Example output for 5 GHz network:

Name: Wi-Fi
Description : Intel(R) Wi-Fi 6 AX200
Radio type: 802.11ac
Channel: 48

For more detailed information, use the command:

netsh wlan show networks mode=bssid

It will show all available Wi-Fi networks around you, indicating the channels and radio types (802.11n, 802.11ac etc.).

⚠️ Note: If you see in the command output Radio type: 802.11n, this does not guarantee that the network operates at 5 GHz. Standard 802.11n Supports both bands. To determine the exact frequency, look at the channel number!

What to do if the command doesn't work?

If after entering netsh wlan show interfaces If you see the error "No wireless interfaces", check:

1. Is Wi-Fi turned on on the laptop (sometimes it is turned off by keys) Fn + F2/F12).

2. Are the drivers installed for the Wi-Fi adapter (check in Device Manager).

3. Do you run the command prompt as administrator (right-click → "Run as administrator").

Method 4: Using third-party programs to analyze Wi-Fi

If you need to not only find out your network frequency but also analyze channel load, use specialized utilities. They display all networks around you, their strength, channels, and even recommend optimal settings.

Top 3 programs for Windows, macOS, and Android:

Example of use WiFi Analyzer on Android:

1. Install the application from Google Play.
2. Open it and wait for the networks to be scanned.
3. Go to the tab Channel Graph (Channel schedule).
4. At the top of the screen, select a range: 2.4 GHz or 5 GHz.
5. Your network will be highlighted, with the channel indicated next to it. The color of the bar will indicate the load.

IN NetSpot or inSSIDer Please pay attention to the columns:

• 📶 Band — range (2.4 or 5 GHz).
• 📊 Channel — channel number.
• 📈 Signal — signal level (in dBm). The closer to 0, the better.
• 🔄 Mode — Wi-Fi standard (for example, 802.11ac means 5 GHz).

Method 5: Checking the frequency on macOS and Linux

Users MacBook or PC on Linux They can also find out the Wi-Fi frequency without third-party programs. These operating systems have built-in utilities for working with networks.

For macOS:

1. Hold down the key Option (Alt) and click on the Wi-Fi icon in the menu bar.
2. In the window that opens, find the line Channel (Channel).
3. If the channel is from 1 to 13, it is 2.4 GHz; if from 36 and above, it is 5 GHz.

For more detailed information, please open Terminal and run:

airport -s

This command will show all available networks with the channel (CHANNEL) and encryption type.

For Linux (Ubuntu, Debian, Fedora, etc.):

1. Open Terminal (Ctrl + Alt + T).
2. Enter the command:

   sudo iwlist wlan0 scanning | grep -E "ESSID|Channel|Frequency"

   (replace wlan0 the name of your Wi-Fi adapter, which can be found using the command iwconfig).

3. Look for the line Frequency:5.18 GHz (5 GHz) or Frequency:2.412 GHz (2.4 GHz).

Example output on Linux:

ESSID:"MyWiFi_5G"
Frequency:5.26 GHz (Channel 52)

⚠️ Note: On some Linux distributions (e.g. Arch Linux) you may need to install the package wireless-tools for team work iwlistInstall it with the command sudo pacman -S wireless-tools (for Arch) or sudo apt install wireless-tools (for Debian/Ubuntu).

How to manually switch between 2.4 GHz and 5 GHz

If you've discovered that your router only operates on one frequency and you need to switch, do so through the web interface. Here are the step-by-step instructions:

1. Go to the router control panel (see Method 1).
2. Find the section Wi-Fi or Wireless network.
3. If you have a dual-band router, there will be two separate networks here (eg. MyWiFi_2G And MyWiFi_5G).
4. To enable or disable one of the ranges:
   • 🔘 Check the box Enable wireless broadcasting for the required frequency.
   • 🔘 Set unique names (SSIDs) for 2.4 GHz and 5 GHz so devices can choose.
   • 🔘 Set the channel manually (automatic selection is not always optimal).

Save the settings and reboot the router.

If your router supports Smart Connect (For example, ASUS AiMesh or TP-Link OneMesh), That:

• 🔄 Devices automatically connect to the best range.
• 🔄 You can't manually select the frequency - you can only disable Smart Connect in the settings.

For devices that do not support 5 GHz (for example, some smart light bulbs or IP cameras), create a separate 2.4 GHz network with a different name.

1. Does your device support 5 GHz (for example, older smartphones on Wi-Fi 4 (802.11n) can only operate at 2.4 GHz).

2. Are there any obstacles between the router and the device (walls, furniture).

3. Is the router in the "Security Mode" enabled? 802.11b/g instead of 802.11n/ac (this limits the speed).-->

Common problems and solutions

When checking or changing Wi-Fi frequencies, users encounter common problems. Let's look at the most common ones:

Problem 1: There is no option for 5 GHz in the router settings.

• 🔹 Cause: The router is single-band (2.4 GHz only).
• 🔹 Solution: Check your router model on the manufacturer's website. If you need 5 GHz support, you'll need to upgrade your hardware.

Problem 2: The device does not see the 5 GHz network.

• 🔹 Reason 1: The device does not support 5 GHz (e.g. older laptops or smartphones).
• 🔹 Reason 2: The router has 5 GHz disabled or a channel not supported in your country has been selected.
• 🔹 Solution: Check your device specifications or enable 5 GHz in your router settings.

Problem 3: The speed at 5 GHz is lower than at 2.4 GHz.

• 🔹 Reason 1: Weak signal due to obstacles.
• 🔹 Reason 2: The 5 GHz channel is congested (check in WiFi Analyzer).
• 🔹 Solution: Change the channel to a less busy one or install repeater to enhance the signal.

Problem 4: After changing the settings, Wi-Fi does not work.

• 🔹 Cause: Incorrect channel or Wi-Fi standard selected.
• 🔹 Solution: Reset your router settings using the button Reset (hold for 10 seconds) and set up again.

⚠️ Note: Some countries (e.g., Russia) have restrictions on certain 5 GHz channels (e.g., 120–140). If you select a restricted channel, your network may not work. Check the permitted channels for your country on the regulator's website (e.g., Roskomnadzor for Russia).

FAQ: Answers to Frequently Asked Questions

My router supports both bands, but devices only connect to 2.4 GHz. How can I fix this?

This is a typical problem if:

• 🔹 2.4 GHz and 5 GHz have the same network name (SSID). Router with Smart Connect can automatically distribute devices, but not always optimally.
• 🔹 The device does not support 5 GHz (check specifications).

Solution:

1. Separate the networks: give them different names, for example MyWiFi_2G And MyWiFi_5G.
2. Turn it off Smart Connect in the router settings (if any).
3. Manually connect your device to the 5GHz network.

How do I know if my device supports 5GHz?

There are several ways:

• 🔹 Check the specifications on the manufacturer's website (look for support 802.11ac or 802.11ax).
• 🔹 On Windows: Open device Manager → Network adapters → Find your Wi-Fi adapter → Properties → tab Additionally. Search for lines Wireless Mode or Band.
• 🔹 On Android/iOS: install the application WiFi Analyzer and see if it sees 5GHz networks.

If the device only supports 802.11b/g/n, it only works on 2.4 GHz.

Which frequency should you choose for online gaming: 2.4 GHz or 5 GHz?

For online games (CS:GO, Fortnite, Valorant etc.) definitely better than 5 GHz, because:

• 🎮 Less latency (ping).
• 🎮 More stable connection (less interference from neighbors).
• 🎮 Higher speed, which is important for loading textures and updates.

Exception: If your PC is far from the router and the 5 GHz signal is weak (for example, the signal level is below -70 dBm), then it is better to stay on 2.4 GHz, but then the ping may increase.

Advice: Also useful for games:

• 🔹 Enable QoS (Quality of Service) in the router settings and prioritize gaming traffic.
• 🔹 Use a wired connection (Ethernet) if possible.

Is it possible to use 2.4GHz and 5GHz on one router at the same time?

Yes, if your router dual-band (Dual-Band). In this case:

• 🔹 You can create two separate networks with different names (for example, Home_2G And Home_5G).
• 🔹 Devices will connect to the network they support.
• 🔹 Some routers (for example, ASUS RT-AX88U) support Tri-Band - three ranges: 2.4 GHz, 5 GHz and another 5 GHz to reduce the load.

If you have it enabled Smart Connect, the router itself distributes